Device for wire-tying bags.



A. S. KUHFQ n H. R. MILLER.

DEVICE F08 WIRE TYING BAGS.

APPucATmN mm um' 22. 1915.

Patented 9ct. E), l?

-eounty of Cook and Stute invented oertfnn new and useful Improve STATESPATENT OFFICE.

AUGUST S. KUHNAND BEGINALD E. MILLER, 0F CHICAGO, ILLINOIS. ASSIGNOR TBATES VALVE BAG COMPANY, 01'I CHICAGO, ILLINGIS,

VIBGINIL A CQRPORATION 0F WEST DEVICE FOR WLREvTYNG BAGS.

Application led May 22, 1915.

end REGINALD R. MILLER, citizens of the United States, residing :itChicago. in the oi Illinois` have ments in Devices for lNire-'lyinglinge. of which the following is n specification.

Our invention relates to n device for wiretying bags and has for itsobject to provide means whereby ties muy be easily twisted upon the bagand the wire-tying device ensily eindV autonmtiea-lly released from thetie.

It is illustrated in the accompanying drawings wherein- Figure 1 is a.side elevation of the device with'the bag and tie in position;

Fig. 2 is a similar view of the same with the tie completed;

Fig. 3 is e similar view tie has been released;

Fig. 4 is a longitudinal detail section;

Fig. nn end view of the hook.

Fig. G is u side elevation of the device with u variation in the twiston the rod shown by bren-king away part of the handle.

Like 'parts nre indicated by the seme letters in all the figures.

A is u. rod having nt its outer end the boss l5 from which projects thesmell rod Il1 on which is mounted the hook piece Bz having the two hooksB3, Ba integral 'with after the twisted y it und faced in the semerotary direction and forming n substantially S-elmped piene.4 The rod Ahas splrnl grooves C, (l and et its inner end is reduced at C1 providedwith the loose coller C2 held in position by the screw U3 :md noting nso support for the link C* pivotully ntl'nehed to the collar at (l5. gl)is n 'lmndle npertln'ed to permit the 'aussage o'l'j the rod A :indprovided with the :item1 projections Dl, D nach with e trains4 verseholeI in which is nnninted the 'screw holt l)Il provided :it itsinnerj'end with the bull D". 'Em-.h of these bells rides in one of thegrooves. A

E `is n -enp uboot the the handle by the screws E.

rod :md secured to Spcuication of Letters Patent.

lt contains.

Patented Het. 9, '19t serial Nu, envia.

the spiral springe; lli which :at one end henri?,

olhfrr .iggdios the end l?? of the Sleeve lil* efhiriz smroondii the rodli"` i" 'fire the sido, ol :i wir). 5mi. l." l :are the iq.. mule. elseid l fil mul l* ffl hr {Ultim} lif.' within the lofon.

ln Vig: nr het@ rlwifn 'file servo oi the screw iii" the left end of theod :is in the other figures :ind nt tl` .e right n. :ong sloiv three dor pitch.. The object of this etrange ment, of Course, is to cenere e.rotational movement of the hook relatively slow with reference to themovement of the handle et the beginning of the twist. The slow Ditch. ofVthe spiral nt the l'ieginning gives inore power with refer-mice to themnonnt of twist effected sind it is :it that point that such power isrequired. As the pitch increases, the twist being" well started. lesspower is required. This Glow pitch if; indicated by the letter G.

W e do not wish to be limited to the 'par lienlnr form. size.oro-portion end arrange ment of these seri-eral parte. as. obviouslygrunt elmog'es could be inode Without departing' from the spirit of ourinvention. We wish our drawings to be tnleh in n sente asding'rmnrmitie, although they do repren sont an operative device.

Tliehooke B, B3 in the preferred forni zure formed of n single integralthin plete perpendicular to the shank B? and som1- ranged that the slotbetween them and the member l will be comparatively deep and narrow.This is am advantage but not ebso lntely essentiel und the piece wouldfunction properly if the slots were not S0 deep; but with the devicenrrnnged ns shown, the Slot-S being em'vfd about. the center .ofrotation, the opemtiv n is better than if' the arrangement Vwereslightly di'erent.

The use and operation of our invention. are es follows:

Assuming that the parte are in the position shown in Fig. 1, the link Cbeing against the breast of the operator, the tie loop havingY lmd itstwo ends caught in the two hooks while its body portion is gatheredaround the top of a puckered bag to completrl the tie it is onlynecessary to brin the handle to the limit of its motion towar theoperator or toward the left. This Will cause the rod A to rotate andthat rotation will rotate the hook in the direction indicated by thearrow in Fig. 5, thus tendin to keep the 'upset ends of the tie loop inhoo ed relation. The tie will now be twisted as indicated in Fig. 2 soas to complete the tie and tighten it about the bag.

The sleeve or buffer member E4, with its end E3, is operativelyconnected to the tie holder, and with the spring E2 and bulier E3 alwaysnormally in contact; While the s ring is compressed by the pushingl in othe buffer member by striking against the ring or collar C2 only at ornear the end of the tie-twisting movement. At this time, when theoperator releases his hold on the handle D, the compressed springpresses against the handle D and thereby causes the reverse turn on theshaft which releases the Wire tie from the tying hooks, and the parts E*and D are again pressed apart from the position shown in Fig. 2 to thatindicated in Figs. 3 and 4.

In thus moving the handle to the limit of its motion toward the left asindicated in Fig. 2, the spring E2 will be compressed and if then thehandle be free this spring will force the handle toward the right, thusrotating the hook piece slightly in the reverse direction anddlsengaging the hooks from the ends of the Wire tie. This is veryinlportant in the use of such machines or tools. They are generally usedby more or less inexperienced help and any effort required to manipulateor operate the tool beyond what is absolutely essential should beavoided. 'lhe automatic release due to this retraeting spring is veryeffective in releasing and disi-hargng the tie and therefore the bag andgreatly facilitates the operation, for the op' eralor immediately uponcompleting the tie roh-ases the handle and proceeds to manipulatilanother tie without havingr fo stop to lsengage the tool. The importanceof this will be evident when it is remembeiml that lensrol'` millions otsuch bags are wire-tied every year.

Attention is called to the fact that the ,spring hnller arrangement is5so arranged lhutwhen the twisting movement has been comph-led thespring then cornes into operation lo return the pa rtal and rotate themlhrougg'h a short distant-e so as lo dismigago the l'ie-holdir from lhelie. Attention 'is also walled to the .simplicity of lhe device whereinthe axes ol' the slots are )arallcl with the axis of rolal'ion oi' thelwistlng tool andso parallel with the wire ends as they are twisled. Theslots are deep and ual'- row and are substantially concentric. Sincethese slots are curved and curved about the center of rotation of thetwisting tool, it is obvious thattlley take hold of the wire, and therotation of the tool tends to lock the wires into the slots, and becausethey are curved it is eas for them to be disengaged by the relativelylight pressure `of the releasing spring.

It willbe observed that the s rin bulier is so arranged that it rotatest e s ank in the opposite or untwisting direction substantially throughone whole revolution so as to disen age the hook from the ends vofthevties. learly, if the resistance is ve great, the spring may notrotate the hoo throu h a whole revolution, but under no conceivablecircumstances will there be such a resistance as will make it impossiblefor the hook to be rotated back far enough to tive tqkrotate the partsin the opposite irection only at the end of the twisting movement.

A wire-tie twisting tool-comprising a. tie holder having parts adaptedto hold the ends of the tie and `faced in the same rotational direction,means for rotating the holder in one direction to twist the tie, andmeans for automatically rotating it approximately one revolution only inthe opposite direi-tion at the end of the twisting action to release thetie, said means comprising' a spring, a buffer member. o erativelyconnected to the-tie holder, t e spring and buffer member being 'sopositioned that they como in contact with one another and the spring iscompressed only at the end of the lie twisting movement.

'3. A wire-tie twisting tool comprising a tic holder having projectingSlotted parts, the slots being deep and' narrow and open on opposedsides ol' the slotted part inthe same rdtational direction, said slotsbeing parallel with the axis of rotation ot the twisting tool.

fl. lu a. wire-tie twisting tool comprisinga shank aud means `l'orrotating` it,.a pair of curved lingers forming an S-sliaped hook lwillinarrowV deep slots curved about the centi-r ol" rotation ol' the shankand o ponin,f \r in the same rotatiolnil direction.

In a wire-tie twisting lool comprising it, a gait' of bape hook withnarrow doop slots curved about the' contar of' rotation of the shank andopening in the same rotational direction, Said hooks being formed of asingle integral thin plate perpendicular' to the Shank.

Signed aChioago, Illinois, this 19th day of May, 1915.

AUGUST S. KUHN. REGINALD R. MILLER Witnesses:

GUNNAR EHRLING, P. H. SEARS.

